Authors: Qingfeng Sun Haipeng Yu Yixing Liu Jian Li Yongzhi Cui Yun Lu
Publish Date: 2010/07/20
Volume: 45, Issue: 24, Pages: 6661-6667
Abstract
Thin TiO2 coating was grown on wood surface using a cosolventcontrolled hydrothermal method The surface morphology chemical composition and functional groups were examined by the scanning electron microscopy SEM energy dispersive Xray analysis EDXA and Fourier transform infrared spectroscopy FTIR respectively The crystalline phase of TiO2 was investigated by the Xray diffraction XRD The combustion test was carried out on the Dual Analysis Cone Calorimeter according to the fire testing standard ISO 56601 Resulted from the combined analysis of SEM and EDXA FTIR and XRD it was demonstrated that the anatase TiO2 layer accompanying some spheral morphology chemically bonded to wood surface with intact and smooth appearance The significant differences in combustion parameters between the untreated and the TiO2 coated wood were observed In comparison to the untreated wood the burning time of TiO2 coated wood was doubled and the smoke CO CO2 emissions were markedly reduced As a result the TiO2 coating can effectively act as a protective layer to prolong the combustion duration of wood and prevent the harmful gas from spreadingThis work was financially supported by the Breeding Plan of Excellent Doctoral Dissertation of Northeast Forestry University GRAP09 in China This work was also supported by Program for the Top Young Talents of Northeast Forestry University and National Natural Science Foundation of China 30630052
Keywords: